yashsingh1/xdaforums huggingface dataset:
[Galaxy S I9000 General] Robin.B:
That does seem odd... My phone lasts about 17 hours, but that's at the end of the day with almost 4hrs display on time! If I don't use it so much, 2 full days is definitely possible.
[Galaxy S I9000 General] alovell83:
I've done this just to test my standby time, as Samsung said that phones can last 24+ days on standby, my results thus far have confirmed that this is mostly accurate if you turn everything off.

I can go over 8 hours without getting 1% of battery drain if I leave sync, 3G, wifi off and kill all tasks (except Alarm Clock) with ATK (including ATK) before going to sleep.

I haven't gotten through a full battery conditioning either. I've been curious about what does eat at my batter so I have tried many things. It seems that sync + 3G kills my battery more than anything, including gaming. I want to look into a fix, but don't know enough about Android yet.

I missed an alarm once and the night before I had killed the process, perhaps I even turned it off in my sleep, so I haven't killed it since. As I've stated above, I can get 0% drain on my phone with the alarm clock running in the background (the icon running on top of the screen) and I leave it on during the weekends just bc I figure it does nothing to my batter life.
[Galaxy S I9000 General] alovell83:
I don't use flight mode, but I do kill most things but can receive calls and texts. I lose 0% that way. I use ATK to kill all my processes, including ATK, before I go to sleep.
[Galaxy S I9000 General] alovell83:
17h 3m 36s since unplugged

74% battery remaining

Display 55% (1h 58m)

Cell standby 24%

Phone idle 16%

Android system 3%

gaming 2% (9m)

No custom ROMS, I do use LauncherPro Beta, I use ATK but don't allow it to run in the background (typically kill all apps including ATK, except my alarm clock & WF Clock Widget), I manually sync with gmail & talk whenever I feel like dealing with the world. I leave 3G off, which means (and this might be my carrier specific SK telcom in South Korea) I can't use data and therefore none of my programs randomly wake and pop up to do their business. I notice that if I have 3G on ATK has ALOT more items loaded in its memory.

With these practices I lose 0% overnight and feel that Samsung's quoted 24d standby is accurate. I know this is fairly conservative usage, and not for anyone who needs to stay connected to the world,. For me personally, it doesn't make sense to sync during the day when I'm out as 95% of my personal emails and chats happen very early or very late due to my time difference with the West. I think next month I might be able to upgrade to an unlimited data plan that is being rolled out and at that point I'll maybe leave sync and 3G on, but who knows.
[Galaxy S I9000 General] wascaa:
My turn :

5% left

1d11h since last charge

34% eaten by my tracks (2h of GPS logging)

2h30 minutes of display (mostly in low light conditions)

Mostly on WIFI.

These numbers seems acceptable to me.
[Galaxy S I9000 General] StarmanUK:
For what it's worth -

11% Remaining / F/W: 2.1-up1 BB: I9000XXJF3

1d 5h 32m since unplugged - lowest brightness setting, WIFI, and Sync enabled

Display 45% (Time on: 2h 53m)

Cell standby 27% (1d 5h 31m)

Phone Idle 18% (1d 2h 39m)

Internet 3% (COU usage 18m 42s / foreground 17m 17s)

Android System 3%

Android OS 2%

Voice calls 2%
[Galaxy S I9000 General] nicoloco:
I'm using launcherpro instead of TouchWiz that's all . I'm also using systempanel to kill some useless app

I had no wifi this time, just in 3G with my work mail sync every 30mn

It's already a light usage for me.

I will give a try without sync ... but if this is the reason of the battery drain I will just throw away the phone.
[Galaxy S I9000 General] dagingaa:
Ok, nearing the end of my batterylife here.

Current use: Moderate.

15 minutes of music. A couple of smses. Surfing and connectbot for about 30 minutes. No gaming.

I'm currently using TouchWiz with Smooth calendar, Weather from Yr, Twitter, Facebook, Latitude and News and Weather widgets with updateintervals of 3 hours. Wifi is currently always on. GPS and BT off for the entire session.

Battery: G7 model EB575152VU | 2010.06.13

FW: JG5 with mimocans lagfix and Modaco r2. AutoKiller set to Agressive

Battery left: 15%

13h 45m 49s since unplugged

Display 37% | 1h 25m 10s | Lowest setting (also in browser)

Cell standby 21 % | No time without signal and 2G only

Phone Idle 14% | 12h 24m 38s

Android OS 11% | CPU 43m 51s

Android System 4% | CPU usage 14m 30s, foreground 51s

Media Server 3% | CPU Usage 8m 51s

Wi-Fi 3% | 13h 42m 35s

Voice Calls 2% | 48s

Varsel fra Yr (Weather from Yr) 2% | Usage 5m 10s, foreground 9s

Android Core Apps 2% | 4m 49s, foreground 1m 33s

Calendar 2% | 4m 45s

Still a bit disappointed by this, but far better then with LauncherPro. Also I've rebooted the phone last night hoping that it would make a difference.

Any ideas on how to further test this now that I have one set of data? Also any other way of getting more specific data fra Android about application usage? Perhaps process usage?
[Galaxy S I9000 General] alovell83:
The one day that I had sync and 3G on the whole day I also had ATK set on Aggressive as well. With all my other use normal I saw over 50% of my battery eaten in less than 6 hours (before fully cycling the battery though). I had the screen on for maybe an hour, so I was extremely disappointed. But usually that same usage of screen I'd lose 0-5% of my battery.

I haven't bothered to have sync and 3G on all day since, but honestly, my recommendation is to try it without ATK on at all. Occasionally, especially if you are using the phone, before turning off the screen open ATK & kill all tasks including ATK. Then lock the screen, I have a feeling that ATK is on aggressive is one of my 3 variables that I want to test myself, but I'm waiting until my plan switches over to unlimited data in August or towards the end of the month when I have more breathing room on my usage.
[Galaxy S I9000 General] dagingaa:
I'm actually not using ATK but autokiller which just tweaks androids own task killing algorithm. However, my next test will be with this set to off or moderate. Then I will test it with extreme settings.

However, I see your point. Killing tasks left and right might poll my phone a lot and preventing sleep on the cpu.

I really do wish there was a faster way to test. The battery issue is my only gripe with this phone. It needs to be able to pull 7 hours of constant use for it to be worth it for me.
[Galaxy S I9000 General] Wazco:
I have noticed something, two days last week my battery struggled to make a day and I hadnt changed my usage at all. I have two alarms set one an hour after the other, the first one goes off, but the second doesnt. Yesterday I couldnt sleep and I watched the phone when the second alarm was meant to go off. The phone wakes up and just displays the lock screen, it stays on for a few minutes and goess off again. Im guessing this is related to my battery problems as I have snooze set to come on 5 times every 10 minutes.

After this I edited the alarm to come on an hour later and it fired off fine, weird.

So it seems that if the alarm doesnt go off properly, the battery gets drained more than normal. Im talking about a 30% - 40% difference here in the battery which makes me think its more than just the screen being on, maybe the cpu gets pegged at 100% too while this is happening?

Its enough of a difference that when this happens my battery lasts barely a day whereas normally I get two days out of it.

Can anyone confirm this?
[Galaxy S I9000 General] kalpik:
To all who flashed firmware, did you try this: http://xdaforums.com/showthread.php?t=722862 ?
[Galaxy S I9000 General] alovell83:
I think either way you will encounter partial wake, android usage, and cpu usage that you wouldn't otherwise have. The stock Samsung application is decent at telling you if anything is running in the background that is using the CPU, and rarely does anything pop up (I've actually removed the widget), but I think the killing is mostly necessary to kill things that might be syncing or acting erratically, even something set to aggressive wont prevent these programs from running, just cut down on the amount of time they run.

I find running ATK & killing all tasks 1-3 times a day is optimal for me, personally. and that might even be a bit more aggressive than necessary, but my screen and CPU are already running anyways, so I figure why not.
[Galaxy S I9000 General] gadjet0:
I noticed today (second day since a charge) that even though my phone was at idle the back of the phone just above the Google Logo was warm, when I woke it up the battery level had dropped about 10% in the last half an hour.

I powered the phone all the way off and then back on and 30 min's later the power level was the same (no further drain) and the rear cover wasn't warm.

Something is causing the CPU to run in idle, I'm assuming the processor is located in that area.

I don't know how to find the culprit though!
[Galaxy S I9000 General] dagingaa:
On HTC models there was "awake time", is there anything comparable, or an app that can get this information from android? I haven't found anything in the menus yet.

Also, I flashed today, and I'm now running stock JG5 with superuser. The battery life did not improve with ATK, however, I seem to have gotten a bit more screen time out of it today.

In extended battery history, I also have a "running" percentage of 79% with display being 28%. Is this normal?
[Galaxy S I9000 General] zippokc:
I'm on my 40th hour right now, with 24% battery left.

30 mins of calls

15 minutes youtube

10 texts

1-2 hours web

30 mins gaming

30 mins music

touchwiz

gps off

sync off

bluetooth off

data connection off until i need it

wifi when available

no self updating apps

widgets - google search, switchpro

advanced task killer - manual

haptic feedback off

I was doing about 20 hour days before uninstalling apps that updated automatically and leaving data connection on. I think haptic feedback makes a big difference too.
[Galaxy S I9000 General] borchgrevink:
Turning off GPS/WIFI/APN/BT at night from 23.00 to 06.00. Else I am always on low brightness, autosync always on, BT off when connected to wifi. Some surfing and email each day. But I have to chatrge every night. Normal?
[Galaxy S I9000 General] flamingpitofhell:
Depends on how exactly you use it - calls/videos/browsing/music/games all consume quite a bit of power, heck even just going through the phone does: a 4" display uses a lot of power even if it is OLED.

But just for reference I usually get 48hrs out of each charge (down to ~30%) with a couple of short calls, a few SMSs, and a bit of playing around/browsing/music (2-3hrs total). This is with wifi & 3G on, sync on, BT off, screen at minimum with a mostly black homescreen wallpaper (not live) running ADW launcher.
[Galaxy S I9000 General] Adriaaaaan:
Personally I think we've been slightly misled by the battery warning indicator, I personally have found that it'll last almost a whole day when the warning comes up assuming mid/light usage. This is quite different to my htc touch hd, which when warned would turn off within the hour.

I charge around every two days (but i still use it a fair bit)
[Galaxy S I9000 General] exstarosta:
I've managed to make it easily last one day with moderate usage, but definitely I won't be able to stretch it to two days. The screen itself eats around 70% of the battery, even though the brightness is on minimum and I'm using black background. I've also found Juice Defender quite useful. But I've got problem with toggling APN on and off. I've tried APNdroid and Toggle APN from Juice Defender and never managed to turn the data back on. I get the data icon in the notifications but there's no network connection.is it s common issue? Cheers
[Galaxy S I9000 General] borchgrevink:
I am using SystemPanel Pro. Is there any way I can see which app has used battery? I have a feeling there is one particular app draining my battery.
[Galaxy S I9000 General] antzen:
4h 33m 22s since unplugged

Battery level 87%

Voice calls 77% (time on 25m 27s)

Cell standby 9%

Phone idle 6%

Display 6% (time on 11m15s)

Media 2%

May I also suggest the "brigtness level" app which reduces the built-in minimum of 8% to 0%. (Google android "brightness level")
[Galaxy S I9000 General] flamingpitofhell:
Thanks mate. Great tip! I was wondering why min brightness was still so bright. :D
[Galaxy S I9000 General] ZAnwar:
On my first day, the Galaxy S lasted over 24 hours, ad that's with me fiddling with it every minute and having it work as a torch for 20 mins. Pretty good I would say.

The charging takes around 3 hours though. Too long in my book.
[Galaxy S I9000 General] dagingaa:
So, from what I can extrapolate it seems some users, including me, have a problem with the display demanding much more power than it should. At least according to the Android system. Now, since I'm not running stock, I'm guessing this could be an issue with the software, and therefore, I can't blame samsung.

Does anybody with a little more knowledge about the drivers or android in general know if this could be a software issue? Or that it could possibly be something wrong with the screen itself?
[Galaxy S I9000 General] larryccf:
had mine all of three full days now, and fully expected from all the reports, for the battery to be nearly depleted by the end of each day, expecially since the battery hasn't been conditioned - on my MT3g i noticed battery life went up during the first few weeks of usage

I'm using a still photo for wallpaper, set "power saving mode" in settings, and no task killers or other apps running in background

1st day, after having fully charged nite before,woke up to find battery at 98% (approx 9 hours from time finished charging) and end of day (5:00PM), showing 35% charge remaining

yesterday, same with end of day showing 37% remaining

and today 38%

usage during the day typically entails maybe 45 - 60 minutes of phone calls, few minutes of browsing (not much) and today it included some browsing and downloading/installing two apps from android market (compass was one so i could calibrate the compass) and updating google maps

i'm also only charging it on my laptop while tethering it to browse the web - i've also believed the slower charge is kinder to the battery

i'm pretty happy - battery remaining is showing better than my MT3G
[Galaxy S I9000 General] robert_tlse:
From looking at my phone and the postings here, i'd say the following are eating up the most of the battery

1. Display

2. Android Os

(just about every post i've seen here with huge battery life have sub 5% Android Os usage)

Seems like Android Os is, anything other than just using the phone ..as a phone. Like fiddling with apps, playing games, surfing, and all the background services that might be running (mail, contact syncro, etc).

Switching from touch wiz to launcher pro seems to have helped my battery quite a bit, but narrowing down what services eat the most seems a bit more complicated ..not to mention that there are a bunch i never use and that start up automatically because of stuff preinstalled into the OS.

Currently in between 1-1.5 days before recharging.

(using the mains charger instead of simple usb connection seems to help a bit too)

-

Robert

* running on factory rom (JF3) unrooted
[Galaxy S I9000 General] meijerhj:
Today my battery got suddenly drained very fast.

After being unplugged for 10 hours battery level was only 13% while today I almost didn't use the phone.

Android System 28%

Cell standby 21%

Phone idle 15%

Display 13%

Voice calls 12% (3 minutes and 6 seconds)

Android OS 5%

Dialer 3%

wpa_supplicant 3%

Wi-Fi 2%

I'm running JM2 + ext4 lagfix for a while and never experienced this kind of battery drainage before.
[Galaxy S I9000 General] azazin:
Battery Level 70%

21h 40m 25s secs since unplugged

Display 37%

Phone Idle 27%

Cell standby 21%

Voice calls 7%

Android System 4%

Internet 2%

Android OS 2%

Using my guide! :D
[Galaxy S I9000 General] brunes:
If you want your battery to last, just install Juice Defender and Ultimate Juice. Enable all the settings to your liking, an enjoy your battery that lasts 2x to 3x longer. It's the best app you can buy for android, period.

It has intelligent policies surrounding enabling and disabling data at intervals, it only turns on WiFi when it is in an area it knows wifi exists, it auto-disables all data at night, etc etc etc.
[Galaxy S I9000 General] Aqrab:
im using my phone all the time

and i can say that it stay about 15 hours max

i charge it using computer USB and the phone on
[Galaxy S I9000 General] nicoloco:
Can you please always add the time of the display ?

It's know to be the main parameter of battery drain.

I have seen people lasting 2 days with their SGS but using the display only 1hour in 2 days !!

Anyway ... I hope one day I will be able to last more than 14hours
[Galaxy S I9000 General] Berserk87:
thats unreal!

You should post every setting you have set on your phone.
[Galaxy S I9000 General] nicoloco:
If only I had a phone like yours pika !!! no battery consumption from game, from android system ... the screen which doesn't consume anything neither.

I would say that the display has not been used more than 1hour ??

( unless the capabilities of this specific phone are far much better than what samsung advertise ...)
[Galaxy S I9000 General] Highl1:
It's my 7th day of the phone, and I did like 7 cycles. Until yesterday, I couldn't do more than 16-17 hours until phone turns off (no battery left), and now it seems improved.

Battery level - 34 %

Battery use (18h 18m 20 sec since unplugged)

Display - 35% (1h 15min 16s)

Cell standby - 23%

Phone idle - 15%

Voice calls - 15% (5 min 48s)

Android system - 5%

Android OS - 2%

My setup:

Stock JG1, Exchange sync on (push), Facebook sync once a day, Weather sync on 3 hours, GMail, 2G network only, haptic feedback off

I installed spare parts app, and it says that on a partial wake, e-mail is the largest consumer. Can Exchange with push on 2G network really use that much battery? I lost like 25% during 7 hours of sleep. With these stats, phone will last like a day, but I had more than 2 days of the same use with my HD2 (also weather and FB sync, GMail etc, and I didn't do only 2G, 3G was enabled).

Will it help if I upgrade to JM2 and do the battery fix someone here suggested?

Also, I searched, but didn't find, e-mail app doesnt have peak and off-peak settings?
[Galaxy S I9000 General] alovell83:
Juice Defender/Ulimate Juice will allow you to set sync times for peak/off-peak. Either Android or Galaxy S, maybe a bit of both exaggerated by the Galaxy S, is weak with sync power saving. I'm a bit surprised to not see Android system & OS take up a bigger portion based on your settings. IIRC, you'll be able to toggle Juice Defender to get more efficient use from your push sync. Similar stats to yours have gotten more than 2x the battery life from the sync alone.

There was a big problem with a facebook app, I'm not sure if it would've affected anyone set up to a once a day sync. Either way, they just fixed this in the past few 2-3 days, so make sure you have the current version (1.3.1) http://www.allfacebook.com/facebook-android-battery-2010-08.

Firmwares can often improve battery usage, you should at least research more.

It looks like you have the display on low brightness settings from the percentages. Also look into "brightness level" app as you can take default low brightness (8%) down to 0%.
[Galaxy S I9000 General] Highl1:
My display is on auto, haven't tweaked that at all.

Is there a trial or lite version of those apps? I might put my peak time to be from 6PM - 11PM, because from 10AM-6PM I am in the office and always near computer to check e-mails.

Can it be tweaked for both GMail and Exchange (example, leave GMail to be syncbed, but Exchange not) and etc?

About this default low brightness app, does this mean that without the app, when screen is off, it's still on like 8% and it's not completelly off?
[Galaxy S I9000 General] alovell83:
JuiceDefender is free, UltimateJuice is 2.79 Euro, a link to the descriptions is here

@low brightness, no. Display = off, = completely off. When you have use manual brightness you can set the % of brightness you want for when the screen is on. However, 0% = 8%. I set mine to the lowest setting, because it's easiest on the eyes for doing what I primarily use the phone for, reading. However, sometimes when going outdoors or playing games I want a higher brightness setting, but I click one button in my power control widget (controls: wi-fi, bluetooth, gps, sync and brightness from your homescreen, get it if you don't have it) I can turn to low/medium brightness and with one more click it goes into high brightness.

All apps bought in the Android marketplace get a 24 hour trial period where you can get a full refund if uninstalled in the trial period.
[Galaxy S I9000 General] mvenneker:
i have the phone since last saturday. the battery drain seems to be bad in the beginning from what i have read?

atm its 13,40 hr since i last charged the battery.

level atm: 53 %

Display: 66 %

cell standby: 16%

phone standby: 11 %

android: 3%

that display percentage is WAYYYY too high haha

i guess i should stop playing with the phone a lot?
[Galaxy S I9000 General] alovell83:
I'm guessing the screen has been on for about 2.5 hours and/or your brightness is too high. Turn the brightness down if you can. 4" screens suck the power down. If you're playing with it, I wouldn't really discourage that, get to know your phone, fall in love, do your thing. If you unplug the device and run nothing, just the display, you can get a reading of 80-85%, maybe more. But get a spare battery (or two) if are going to keep that usage up after a week-long honeymoon.
[Galaxy S I9000 General] brunes:
Juice defender is free, but it only has a subset of the features. I don't think peak / off peak scheduling is free.

The biggest consumer for me is not the display, it is the wifi... android does not track it's use, but I know it is eating a lot.
[Galaxy S I9000 General] Intratech:
nevermind, xda app crashes when uploading screenshot.
[Galaxy S I9000 General] Highl1:
Just when I thought my battery life will increase (it lasted 29 hours from Sunday 4 PM to Monday 9 PM), I am again experiencing problems. My phone was charged all night from when it went to 0%, and I took it off from the charger this morning at 8:30 AM and after just only 4h 16m, it's on 74%

Usage:

Cell standby - 27%

Phone idle - 20%

Display - 18% (7min 13sec)

E-mail - 11% (10m 2 sec CPU usage)

Voice calls - 8% (43sec)

Really have no clue what to do, maybe to disable push e-mail and flash JM2, and see what happens.
[Galaxy S I9000 General] Barachiel:
Charged my phone until it said it was fully charged.

Let it lay on the table for 6 hours.

No sync, No Wifi, No Bluetooth, no GPS, screen = Brightest.

47% Battery after 6 hours, and the screen had been off 100% of the time.

NO incoming SMS or calls.

Gosh, this just suck.
[Galaxy S I9000 General] alovell83:
It's either an app that is running in the background or a defective battery, download spare parts and see if you can identify anything else about the cause of partial wake, processor use and other important categories. Besides that, you can back up, format and see if you experience the same.

If you want to avoid the above turning off 3G, in my experience, mostly prevents apps from self opening and updating in the background. This might be due to my carrier that doesn't even allow me to get SMS (literally, just a smiley that doesn't even produce anything more than ^^, but that might be the sender's pattern not matching what my phone recognizes, back to the point...).

If all fails, you have a bunk battery.
[Galaxy S I9000 General] lqaddict:
Too all of you with the ridiculous battery life in days, are you using your phones at all???

I mean if I leave my phone in the flight mode untouched I am pretty sure it will last me a few days, but what is it good for in that condition?